KDevelop API Documentation

CharInputBuffer.hpp

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00001 #ifndef INC_CharInputBuffer_hpp__
00002 # define INC_CharInputBuffer_hpp__
00003 
00004 /* ANTLR Translator Generator
00005  * Project led by Terence Parr at http://www.jGuru.com
00006  * Software rights: http://www.antlr.org/RIGHTS.html
00007  *
00008  * $Id: CharInputBuffer.hpp,v 1.1 2003/05/02 00:36:19 okellogg Exp $
00009  */
00010 
00011 # include <antlr/config.hpp>
00012 # include <antlr/InputBuffer.hpp>
00013 
00014 # ifdef HAS_NOT_CCTYPE_H
00015 #   include <ctype.h>
00016 # else
00017 #   include <cctype>
00018 # endif
00019 
00020 #ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
00021 namespace antlr {
00022 #endif
00023 
00026 class CharInputBuffer : public InputBuffer
00027 {
00028 public:
00033     CharInputBuffer( unsigned char* buf, size_t size, bool owner = false )
00034     : buffer(buf)
00035     , ptr(buf)
00036     , end(buf + size)
00037     , delete_buffer(owner)
00038     {
00039     }
00040 
00045     ~CharInputBuffer( void )
00046     {
00047         if( delete_buffer && buffer )
00048             delete [] buffer;
00049     }
00050 
00055     virtual inline void reset( void )
00056     {
00057         InputBuffer::reset();
00058         ptr = buffer;
00059     }
00060 
00061     virtual int getChar( void )
00062     {
00063         return (ptr < end) ? *ptr++ : EOF;
00064     }
00065 
00066 protected:
00067     unsigned char* buffer;  
00068     unsigned char* ptr;     
00069     unsigned char* end;     
00070     bool delete_buffer;     
00071 };
00072 
00073 #ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
00074 }
00075 #endif
00076 
00077 #endif
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